Definition of adelaster in English:

adelaster

noun

Botany historical
rare
  • Each of several plants formerly placed in a small genus Adelaster but now placed in the genus Fittonia (family Acanthaceae), comprising small South American plants sold elsewhere as indoor pot plants for their foliage. Also (in form Adelaster): the former genus itself.

Origin

Mid 19th century; earliest use found in Magazine Horticulture. From scientific Latin Adelaster, genus name from ancient Greek ἄδηλος not evident, unseen + ἀστέρ-, ἀστήρ star.

Pronunciation:

adelaster

/adɪˈlastə/